Hello,
On 04/06/2016 18:40, Tamas K Lengyel wrote:
On Sat, Jun 4, 2016 at 3:03 AM, Edgar E. Iglesias
<edgar.igles...@gmail.com> wrote:
Forwarding SMC events for SMC insns that didn't pass the condition tests
doesn't make any sense to me. It'll just make the receivers job harder.
Why would a receiver want to do anything else than drop these?
If it actually does look at them it'll be looking at implementation
defined HW behaviour that may vary between CPU implementations.
If for no other purposes it may be useful to log them to be able to
study the CPU implementation's behavior.
I cannot see how you will be able to study ARM CPU implementation's
behavior with VM event. Though I am not familiar with it.
For now, it looks like to me that forwarding conditional SMC even if the
condition check has failed will require a lot of code in each
introspection applications, not to mention that they will need specific
code to distinguish ARMv7 vs ARMv8.
Anyway, I am planning to send a patch to ignore conditional SMCs if the
condition check has failed because this is the right thing to do.
Regards,
--
Julien Grall
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